The Voyage of the Dawn Treader
written by C.S. Lewis
part of The Chronicles of Narnia

The film is set three years after the events of the previous film in Narnia, and one year in England. The two youngest Pevensie siblings, Edmund and Lucy, are transported back to Narnia along with their cousin Eustace Scrubb. They join the new king of Narnia, Caspian, in his quest to rescue seven lost lords to save Narnia from a corrupting evil that resides on a dark island. Each character is tested as they journey to the home of the great lion Aslan at the far end of the world.